'Dexter' (Showtime)

Showtime

Premieres: Sunday, Oct. 2 at 9 p.m. Expect to see: Season 6 is all about religion. Guest stars Edward James Olmos as a professor of religion, Jordana Spiro as an acolyte, Mos Def as Brother Sam and Colin Hanks as a lab assistant whose character description is being kept tightly under wraps. Andrea Reiher, Zap2it Related: All of Zap2it's 'Dexter' coverage

Premieres: Sunday, Oct. 2 at 9 p.m. Expect to see: Season 6 is all about religion. Guest stars Edward James Olmos as a professor of religion, Jordana Spiro as an acolyte, Mos Def as Brother Sam and Colin Hanks as a lab assistant whose character description is being kept tightly under wraps. Andrea Reiher, Zap2it Related: All of Zap2it's 'Dexter' coverage (Showtime)

Premieres: Sunday, Oct. 2 at 9 p.m. Expect to see: Season 6 is all about religion. Guest stars Edward James Olmos as a professor of religion, Jordana Spiro as an acolyte, Mos Def as Brother Sam and Colin Hanks as a lab assistant whose character description is being kept tightly under wraps. Andrea Reiher, Zap2it Related: All of Zap2it's 'Dexter' coverage